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Johnsson N, Fagerström C, Lindberg C, Tuvesson H. Supporting patients with venous leg ulcers in self-care monitoring: an interview study with primary health care professionals. Scand J Prim Health Care 2024:1-10. [PMID: 38676568 DOI: 10.1080/02813432.2024.2346134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 04/17/2024] [Indexed: 04/29/2024] Open
Abstract
OBJECTIVE This study described the experiences and perceptions of how primary health care professionals (PHCPs) support patients with venous leg ulcers (VLUs) in self-care monitoring. DESIGN A qualitative approach with reflexive thematic analysis was used, with 24 individual qualitative open interviews. SETTING Primary health care clinics and community health care in four southern regions in Sweden. SUBJECTS Registered nurses, district nurses and nurse assistants who had experience of caring for patients with VLUs. In total, 24 interviews were conducted with PHCPs in Sweden. RESULTS PHCPs have a vital role in promoting patient independence and responsibility, identifying needs and adapting care strategies, while also recognising unmet needs in patients with VLUs. CONCLUSION PHCPs actively monitor patients' self-care and establish caring relationships. They see a need for a structured primary health care work routine for ulcer management.
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Affiliation(s)
- Natali Johnsson
- Faculty of Health and Life Sciences, Linnaeus University, Växjö, Sweden
| | - Cecilia Fagerström
- Faculty of Health and Life Sciences, Linnaeus University, Kalmar, Sweden
- Department of Research, Region Kalmar County, Kalmar, Sweden
| | | | - Hanna Tuvesson
- Faculty of Health and Life Sciences, Linnaeus University, Växjö, Sweden
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Tettelbach WH, Driver V, Oropallo A, Kelso MR, Niezgoda JA, Wahab N, Jong JLD, Hubbs B, Forsyth RA, Magee GA, Steel P, Cohen BG, Padula WV. Dehydrated human amnion/chorion membrane to treat venous leg ulcers: a cost-effectiveness analysis. J Wound Care 2024; 33:S24-S38. [PMID: 38457290 DOI: 10.12968/jowc.2024.33.sup3.s24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2024]
Abstract
OBJECTIVE To evaluate the cost-effectiveness of dehydrated human amnion/chorion membrane (DHACM) in Medicare enrolees who developed a venous leg ulcer (VLU). METHOD This economic evaluation used a four-state Markov model to simulate the disease progression of VLUs for patients receiving advanced treatment (AT) with DHACM or no advanced treatment (NAT) over a three-year time horizon from a US Medicare perspective. DHACM treatments were assessed when following parameters for use (FPFU), whereby applications were initiated 30-45 days after the initial VLU diagnosis claim, and reapplications occurred on a weekly to biweekly basis until completion of the treatment episode. The cohort was modelled on the claims of 530,220 Medicare enrolees who developed a VLU between 2015-2019. Direct medical costs, quality-adjusted life years (QALYs), and the net monetary benefit (NMB) at a willingness-to-pay threshold of $100,000/QALY were applied. Univariate and probabilistic sensitivity analyses (PSA) were performed to test the uncertainty of model results. RESULTS DHACM applied FPFU dominated NAT, yielding a lower per-patient cost of $170 and an increase of 0.010 QALYs over three years. The resulting NMB was $1178 per patient in favour of DHACM FPFU over the same time horizon. The rate of VLU recurrence had a notable impact on model uncertainty. In the PSA, DHACM FPFU was cost-effective in 63.01% of simulations at the $100,000/QALY threshold. CONCLUSION In this analysis, DHACM FPFU was the dominant strategy compared to NAT, as it was cost-saving and generated a greater number of QALYs over three years from the US Medicare perspective. A companion VLU Medicare outcomes analysis revealed that patients who received AT with a cellular, acellular and matrix-like product (CAMP) compared to patients who received NAT had the best outcomes. Given the added clinical benefits to patients at lower cost, providers should recommend DHACM FPFU to patients with VLU who qualify. Decision-makers for public insurers (e.g., Medicare and Medicaid) and commercial payers should establish preferential formulary placement for reimbursement of DHACM to reduce budget impact and improve the long-term health of their patient populations dealing with these chronic wounds. DECLARATION OF INTEREST Support for this analysis was provided by MiMedx Group, Inc., US. JLD, and RAF are employees of MiMedx Group, Inc. WHT, BH, PS, BGC and WVP were consultants to MiMedx Group, Inc. VD, AO, MRK, JAN, NW and GAM served on the MiMedx Group, Inc. Advisory Board. MRK and JAN served on a speaker's bureau. WVP declares personal fees and equity holdings from Stage Analytics, US.
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Affiliation(s)
- William H Tettelbach
- RestorixHealth, Los Angeles, CA, US
- College of Podiatric Medicine, Western University of Health Sciences, US
- Duke University School of Medicine, Department of Anesthesiology, US
- American Professional Wound Care Association, US
| | - Vickie Driver
- Wound Care and Hyperbaric Centers at INOVA Healthcare, US
- Wound Care Collaborative Community, US
| | - Alisha Oropallo
- Comprehensive Wound Healing Center, US
- Hyperbarics at Northwell Health, US
| | | | | | - Naz Wahab
- Wound Care Experts, NV, US
- HCA Mountain View Hospital, US
- Roseman University College of Medicine, US
- Common Spirit Dignity Hospitals, US
| | | | | | - R Allyn Forsyth
- MiMedx Group, Inc., GA, US
- Department of Biology, San Diego State University, CA, US
| | | | | | | | - William V Padula
- Stage Analytics, Suwanee, GA, US
- Department of Pharmaceutical & Health Economics, Mann School of Pharmacy & Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, US
- The Leonard D. Schaeffer Center for Health Policy & Economics, University of Southern California, Los Angeles, CA, US
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Rosenburg M, Tuvesson H, Lindqvist G, Brudin L, Fagerström C. Associations between self-care advice and healing time in patients with venous leg ulcer- a Swedish registry-based study. BMC Geriatr 2024; 24:124. [PMID: 38302867 PMCID: PMC10835865 DOI: 10.1186/s12877-024-04660-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 01/02/2024] [Indexed: 02/03/2024] Open
Abstract
BACKGROUND Venous leg ulcers take time to heal. It is advocated that physical activity plays a role in healing, and so does the patient's nutritional status. Additionally, malnutrition influences the inflammatory processes, which extends the healing time. Therefore, the staff's advising role is important for patient outcomes. Thus, this study aimed to investigate the associations between given self-care advice and healing time in patients with venous leg ulcers while controlling for demographic and ulcer-related factors. METHODS The sample consisted of patients registered in the Registry of Ulcer Treatment (RUT) which includes patient and ulcer-related and healing variables. The data was analyzed with descriptive statistics. Logistic regression models were performed to investigate the influence of self-care advice on healing time. RESULTS No associations between shorter healing time (less than 70 days) and the staff´s self-care advice on physical activity was identified, whilst pain (OR 1.90, CI 1.32-2.42, p < 0.001) and giving of nutrition advice (OR 1.55, CI 1.12-2.15, p = 0.009) showed an association with longer healing time. CONCLUSIONS Neither self-care advice on nutrition and/or physical activity indicated to have a positive association with shorter healing time. However, information and counseling might not be enough. We emphasize the importance of continuously and systematically following up given advice throughout ulcer management, not only when having complicated ulcers.
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Affiliation(s)
- Marcus Rosenburg
- Faculty of Health and Life Sciences, Department of Health and Caring Sciences, Linnaeus University, Växjö, Sweden.
- School of Health and Welfare, Department of Health and Nursing, Halmstad University, Halmstad, Sweden.
| | - Hanna Tuvesson
- Faculty of Health and Life Sciences, Department of Health and Caring Sciences, Linnaeus University, Växjö, Sweden
| | - Gunilla Lindqvist
- Faculty of Health and Life Sciences, Department of Health and Caring Sciences, Linnaeus University, Växjö, Sweden
| | - Lars Brudin
- Department of Clinical Physiology, Kalmar County Hospital, Kalmar, Sweden
- Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - Cecilia Fagerström
- Faculty of Health and Life Sciences, Department of Health and Caring Sciences, Linnaeus University, Växjö, Sweden
- Department of Research Region Kalmar County, Kalmar, Sweden
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Guo X, Gao Y, Ye X, Zhang Z, Zhang Z. Experiences of patients living with venous leg ulcers: A qualitative meta-synthesis. J Tissue Viability 2024; 33:67-74. [PMID: 38065827 DOI: 10.1016/j.jtv.2023.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 10/17/2023] [Accepted: 11/30/2023] [Indexed: 03/17/2024]
Abstract
BACKGROUND Venous Leg Ulcer is characterized by a prolonged course, delayed healing and high recurrence rate. Bringing challenges to patient treatment and care.Patients need to control the negative behavioral factors that affect wound healing and recurrence, which seriously affect their quality of life. OBJECTIVE To integrate qualitative research related to the disease experience and feelings of patients with Venous Leg Ulcer and provide references for optimizing patient intervention measures. METHODS We searched databases including Pubmed, CINAHL, EMBASE, Web of Science, PsycINFO, The Cochrane library, ProQuest, CNKI and Wan Fang Data from 2000 to February 2023 to collect qualitative studies on the experiences of patients living with venous leg ulcers. We used the Australian JBI evidence-based healthcare center qualitative research quality evaluation standard to evaluate the quality of literature. After quality assessment, meta-synthesis was used to summarize and explain the results. RESULTS Sixteen studies were eligible for inclusion, and the total number of included individuals was 146. The perceptions of individuals with Venous Leg Ulcer synthesized three overarching themes and their subthemes: disease cognition (Understanding the cause of VLU,Understanding of VLU treatment, Recognition of VLU recurrence); physical experience (Pain symptoms, Other symptoms); and psychological and social experience (psychological impact, health education, economic burden, social relations, response strategies, doctor-patient/nurse-patient relationship). CONCLUSION The lives of patients with venous leg ulcers are influenced by various complex and diverse factors. Healthcare professionals must recognize the patient's emotional needs, establish a multidimensional support system, and promote wound healing through patient self-adjustment.
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Affiliation(s)
- Xiaoyu Guo
- Nurse-Led Clinics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Yanqiu Gao
- Nurse-Led Clinics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.
| | - Xiaoshan Ye
- Nurse-Led Clinics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Zexiang Zhang
- Nurse-Led Clinics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Zhenmei Zhang
- Nursing Department, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.
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Gomes FJP, Henriques MAP, Baixinho CL. The effectiveness of nursing interventions in adherence to self-care for preventing venous ulcer recurrence: A systematic literature review. Int Wound J 2023; 21:e14454. [PMID: 37986660 PMCID: PMC10895201 DOI: 10.1111/iwj.14454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 10/12/2023] [Indexed: 11/22/2023] Open
Abstract
Venous ulcers affect up to 3% of the global population, with a high impact on economies and quality of life. This is exacerbated by its recurrence rates, which reach 70% at 12 months after healing. The perpetuation of these cycles of healing and recurrence is not interrupted or even attenuated by the self-care activities recommended and directed toward their prevention. In this context, we sought to identify the effectiveness of interventions that promote adherence to self-care to prevent venous ulcer recurrence. In August 2022, we conducted a literature search via EBSCO in the following databases: CINAHL Complete, MEDLINE Complete, Cochrane Database of Systematic Reviews, Scopus, and Web of Science. The inclusion criteria were researched in the form of randomised controlled trials or systematic literature reviews, and 99 studies were identified. During the different times of selection, four studies met the defined inclusion criteria and were included. As the main conclusions, the emphasis goes to the importance of the use of compression and the greater effectiveness of higher compression classes for the prevention of recurrence. Different educational methodologies seem to be important to increase knowledge about prevention, specifically regarding the aetiology of recurrence and the implementation of prevention measures.
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Affiliation(s)
- Filipe José Paulo Gomes
- Nursing Research, Innovation and Development Centre of Lisbon (CIDNUR)Doctoral Program Lisbon University/Nursing School of LisbonLisbonPortugal
| | - Maria Adriana Pereira Henriques
- Nursing School of LisbonNursing School of Lisbon, Portugal/Nursing Research, Innovation and Development Centre of Lisbon (CIDNUR)LisbonPortugal
| | - Cristina Lavareda Baixinho
- Nursing School of LisbonNursing School of Lisbon, Portugal/Nursing Research, Innovation and Development Centre of Lisbon (CIDNUR)LisbonPortugal
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Huang Y, Hu J, Xie T, Jiang Z, Ding W, Mao B, Hou L. Effects of home-based chronic wound care training for patients and caregivers: A systematic review. Int Wound J 2023; 20:3802-3820. [PMID: 37277908 PMCID: PMC10588341 DOI: 10.1111/iwj.14219] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 04/21/2023] [Indexed: 06/07/2023] Open
Abstract
We aimed to review and synthesise the evidence of the interventions of patients' and informal caregivers' engagement in managing chronic wounds at home. The research team used a systematic review methodology based on an updated guideline for reporting systematic reviews (PRISMA) and recommendations from the Synthesis Without Meta-analysis. Cochrane Central Register of Controlled Trial of the Cochrane Library, Pubmed, Embase, CINAHL, Wanfang (Chinese), and CNKI database (Chinese) were searched from inception to May 2022. The following MESH terms were used: wound healing, pressure ulcer, leg ulcer, diabetic foot, skin ulcer, surgical wound, educational, patient education, counselling, self-care, self-management, social support, and family caregiver. Experimental studies involving participants with chronic wounds (not at risk of wounds) and their informal caregivers were screened. Data were extracted and the narrative was synthesised from the findings of included studies. By screening the above databases, 790 studies were retrieved, and 16 met the inclusion and exclusion criteria. Studies were 6 RCTs and ten non-RCTs. Outcomes of chronic wound management included patient indicators, wound indicators, and family/caregiver indicators. Home-based interventions of patients or informal caregivers' engagement in managing chronic wounds at home may effectively improve patient outcomes and change wound care behaviour. What's more, educational/behavioural interventions were the primary type of intervention. Multiform integration of education and skills training on wound care and aetiology-based treatment was delivered to patients and caregivers. Besides, there are no studies entirely targeting elderly patients. Home-based chronic wound care training was important to patients with chronic wounds and their family caregivers, which may advance wound management outcomes. However, the findings of this systematic review were based on relatively small studies. We need more exploration of self and family-oriented interventions in the future, especially for older people affected by chronic wounds.
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Affiliation(s)
- Yao Huang
- Wound Healing Center at Emergency DepartmentNinth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
- Department of GraduateShanghai Jiao Tong University School of NursingShanghaiChina
| | - Jiale Hu
- Department of Nurse AnesthesiaVirginia Commonwealth UniversityRichmondVirginiaUSA
| | - Ting Xie
- Wound Healing Center at Emergency DepartmentNinth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Zhaoqi Jiang
- Wound Healing Center at Emergency DepartmentNinth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Wenjing Ding
- Department of libraryShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Beiqian Mao
- Wound Healing Center at Emergency DepartmentNinth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Lili Hou
- Nursing DepartmentNinth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
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Júnior SADO, Oliveira ACDS, Dantas Araújo MP, Dantas BADS, Sánchez MDCG, Torres GDV. Influence of pain on the quality of life in patients with venous ulcers: Cross-sectional association and correlation study in a brazilian primary health care lesions treatment center. PLoS One 2023; 18:e0290180. [PMID: 37582120 PMCID: PMC10426926 DOI: 10.1371/journal.pone.0290180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 08/03/2023] [Indexed: 08/17/2023] Open
Abstract
We aimed to verify the association and correlation between pain and QoL in people with VU treated in a Brazilian Primary Health Care (PHC) lesions treatment center. This is an observational, cross-sectional study with a quantitative approach, carried out in a service specialized in the treatment of chronic injuries, linked to 29 PHC units. Sociodemographic and health characterization instruments were used. The Short Form Health Survey-36 (SF-36) and Visual Analogue Pain Scale (VAPS) also were used. The Kruskal-Wallis test verified the association between the scalar variables of QoL and pain intensity. With Spearman's correlation test, we verified the level of correlation between the scales applied. A total of 103 patients participated in the study. Higher QoL scores associated with moderate pain were found, especially in the Physical role functioning, Physical functioning, and Vitality domains. Correlation analysis showed its greatest (moderate) strength in the interaction between the highest scores in the Physical role functioning and Emotional role functioning domains with the lowest pain levels.
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Lian Y, Birt L, Wright D. Hospital clinicians' perspectives of using compression therapy on venous leg ulcers: a systematic qualitative review. BRITISH JOURNAL OF NURSING (MARK ALLEN PUBLISHING) 2023; 32:S30-S42. [PMID: 36840520 DOI: 10.12968/bjon.2023.32.4.s30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Venous leg ulcer treatment is frequently discontinued in hospitals in contravention of national guidance, significantly affecting patient outcomes and increasing NHS costs. AIM To identify, from the published literature, reasons for variable implementation. METHOD Systematic review with narrative synthesis, including full papers in English with empirical qualitative data. Synonyms for venous leg ulcer, compression therapy and secondary care were searched across a range of health-related databases. The Critical Appraisal Skills Programme (CASP) checklist determined study quality, and meta-ethnography was used for data synthesis. RESULTS 7040 titles and abstracts and 41 full-text papers were screened with four papers selected. Three key themes were generated: educational needs surrounding implementation of compression therapy, patient factors regarding adherence and organisational resources including availability of appropriate equipment and trained staff. CONCLUSION Barriers at the ward level were identified. There is a need to better understand why hospitals are not addressing them.
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Affiliation(s)
- Yaping Lian
- Tissue Viability Nurse Specialist, Tissue Viability Team, Cambridge University Hospitals NHS Foundation Trust, Cambridge, Cambridge
| | - Linda Birt
- LOROS Associate Professor in Palliative Care and Frailty, School of Healthcare, College of Life Sciences, University of Leicester, Leicester
| | - David Wright
- Head of School of Healthcare and Professor of Health Services Research, School of Healthcare, College of Life Sciences, University of Leicester, Leicester
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de Oliveira Viana Pereira DM, de Souza Oliveira AC, de Oliveira Júnior SA, Jacinto MAG, Dionísio AJ, Lima AEO, da Silva Dantas BA, de Oliveira Sousa SL, Martínez CSG, de Vasconcelos Torres G. Correlation between Generic and Disease-Specific Quality of Life Questionnaires in Patients with Venous Ulcerations: A Cross-Sectional Study Carried out in a Primary Health Care Setting in Brazil. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:3583. [PMID: 36834277 PMCID: PMC9961915 DOI: 10.3390/ijerph20043583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
Venous Ulcers (VU) are a serious health problem that affect the Quality of Life (QoL). They are evaluated by many different scales in the literature. We aimed to analyze the correlation between the Medical Outcomes Short-Form Health QoL (SF-36) and Charing Cross Venous Ulcer Questionnaire (CCVUQ) scales. This is a cross-sectional study conducted in a Brazilian center specializing in chronic VU of the Primary Health Care (PHC) provided to patients with active VU. The general QoL instrument SF-36 and the CCVUQ, specific for people with VU, were used. Spearman's Rho Test determined the correlation between the variables analyzed. Our sample had a total of 150 patients. We found a direct correlation between the domestic activities division (CCVUQ) aspect and the SF-36 Physical role functioning (strong), and Physical functioning (moderate) domains. The Social interaction division (CCVUQ) aspect presented moderate correlation with the domains of the SF-36 Physical role functioning and Physical functioning. The Vitality domain (SF-36) showed moderate correlation with the aspects of CCVUQ Cosmesis division and Emotional status division. The greatest forces of direct correlation were observed between the physical, functional and vitality aspects of SF-36 with those represented by domestic activities and social interaction in the CCVUQ.
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Affiliation(s)
| | | | - Severino Azevedo de Oliveira Júnior
- Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte (UFRN), Av. Olavo Lacerda Montenegro n. 2685, Parnamirim 59158-400, Brazil
| | - Maria Angélica Gomes Jacinto
- Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte (UFRN), Av. dos Caiapós n. 121, Bairro Pitimbú, Natal 59067-400, Brazil
| | - Alessandra Justino Dionísio
- Departamento de Enfermagem, Universidade Federal do Rio Grande do Norte (UFRN), Rua dos Palmares, 30, Parque das Árvores, Parnamirim 59154-145, Brazil
| | - Alana Ellen Oliveira Lima
- Departamento de Enfermagem, Universidade Federal do Rio Grande do Norte (UFRN), Av. Maria Lacerda Montenegro nº 339, Parnamirim 59152-900, Brazil
| | - Bruno Araújo da Silva Dantas
- Faculdade de Ciências da Saúde do Trairi, Universidade Federal do Rio Grande do Norte (UFRN), Rua Alice Azevedo, 30, Natal 59080-015, Brazil
| | | | - Carmelo Sergio Gómez Martínez
- Facultad de Enfermería, Universidad Católica de Murcia (UCAM), Calle Orden de Santiago, num 5, Abarán-Murcia, 30550 Murcia, Spain
| | - Gilson de Vasconcelos Torres
- Centro de Ciências da Saúde, Research Productivity Scholarship (CNPQ/PQ1D), Universidade Federal do Rio Grande do Norte (UFRN), Rua das Massarandubas, 292, Nova Parnamirim, Parnamirim 59150-630, Brazil
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